Topic B · Private-Sector Research

Equity Compensation

Estimated read: 60-90 min across multiple sessions · v1 draft · 2026-04-22

Why start here

Equity is the single biggest variable separating state comp (none) from private comp (where it's often 30-60% of total). Misreading a grant can cost six figures; reading it right is leverage. This is also the topic where intuition trained on "stocks" is most misleading — private-company equity is a different instrument.

Contents

  1. What equity actually is (and isn't)
  2. Types of grants: ISO, NSO, RSU, restricted stock
  3. Vesting: cliffs, schedules, acceleration, refreshes
  4. Strike price, FMV, and the 409A valuation
  5. Exercise mechanics and the 90-day trap
  6. Tax treatment: ISO, NSO, RSU, AMT, QSBS
  7. Liquidity: IPO, acquisition, secondary
  8. Liquidation preferences and the preference stack
  9. How to evaluate a grant
  10. Public-company equity: RSUs, ESPP, performance shares
  11. Negotiation: what's actually movable
  12. Worked examples: Series B, Series C, public, failure
  13. What this means for you
  14. Questions to ask in every offer

1. What equity actually is (and isn't)

Equity comp is a claim on future value of the company, delivered to you gradually in exchange for your labor. It exists because:

It is not:

Mental model shift

Treat equity as expected value × probability × liquidity timing, not face value. A $500k grant at a 20%-survival Series B with a 7-year liquidity horizon is fundamentally different from $500k of public-company RSUs vesting quarterly. Both can be called "$500k." Neither is.

2. Types of grants

There are four flavors you'll encounter. The type matters enormously for tax treatment.

Incentive Stock Options (ISOs)

Non-Qualified Stock Options (NSOs / NQSOs)

Restricted Stock Units (RSUs)

Restricted Stock (RS) — early-stage

Phantom stock / SARs

Rare at tech companies. Mostly at private companies that don't want to issue real shares (family businesses, pre-IPO holdings). Treat as deferred cash comp indexed to equity value — not real equity. If you see this, ask questions; it's usually worse than actual equity.

Typical mapping by stage

3. Vesting

Vesting is the schedule by which equity you've been granted becomes yours. Before shares vest, you have no claim on them if you leave.

The standard: 4 years with 1-year cliff, monthly thereafter

Variations you might see:

Acceleration

Acceleration clauses determine what happens to unvested equity in a change-of-control (acquisition).

Refresh grants

Good companies issue additional equity grants starting year 2 or 3 to prevent comp from cliffing when your initial 4-year vest completes. At senior levels, refreshes typically equal 25-50% of the initial grant, granted annually.

Ask during the offer stage: "What's the refresh grant cadence and sizing here?" Answer reveals how the company thinks about long-term comp. Silence or vague answer is a yellow flag.

4. Strike price, FMV, and the 409A

For options (ISOs and NSOs), the strike price is what you pay per share when you exercise. It's set at the grant date and doesn't change.

The 409A valuation

IRS Section 409A requires private companies to strike options at fair market value (FMV) of common stock on the grant date. To establish defensible FMV, companies commission a third-party 409A valuation every 12 months (or after material events like a funding round). The strike price of grants issued between 409As equals the most recent 409A FMV.

Why strike doesn't equal the last round's price

When a company raises a Series B at a $400M post-money valuation, investors buy preferred stock, not common. Preferred stock has extra rights (liquidation preferences, board seats, anti-dilution) that make it more valuable per share. The 409A valuation discounts common to reflect this — typically 20-35% of the preferred price at early stages, rising toward 80-90% as the company approaches IPO.

Why this matters

If you join at Series B when the preferred round priced at $10/share, your option strike might be $3/share. That's actually good for you — it's a built-in spread. The FMV reflected in the 409A is the common-stock value, not the preferred price.

How strike evolves over rounds

RoundPreferred price409A (common)Strike if granted then
Seed$1.00$0.10$0.10
Series A$3.50$0.70$0.70
Series B$10.00$3.00$3.00
Series C$25.00$10.00$10.00
Series D$50.00$25.00$25.00
Pre-IPO$80.00$65.00$65.00

Key takeaway: earlier grants have dramatically lower strikes. If the company IPOs at $40/share, the Seed grant has $39.90 of spread per share; the Pre-IPO grant has $0 or negative spread. This is why the "join earlier" equity math is so compelling — and why late-stage private companies often shift to RSUs (which don't have a strike problem).

5. Exercise mechanics and the 90-day trap

With options, vesting gives you the right to buy. You still have to actually exercise (buy) to own the shares. Exercising costs cash.

Cost at exercise

Total out-of-pocket at exercise = (shares × strike) + any taxes owed.

Example: 10,000 ISOs at $3 strike. FMV now $12.

The 90-day post-termination exercise window

This is where most employees get burned.

Under standard option agreements, when you leave the company, you have 90 days to exercise any vested options. After 90 days, your vested options expire. You lose them.

So if you:

  1. Vest 10,000 options over 2 years at a Series B company
  2. Leave for a new role
  3. Don't have $30,000 cash to exercise (or don't want to pay AMT on the $90k spread)

...you walk away with nothing. This has happened to countless early employees at successful companies. They were technically millionaires on paper and lost it all because they couldn't or wouldn't write the check in the 90-day window.

Extended exercise windows

Progressive companies (Pinterest popularized this, many follow) offer 5-year or 10-year post-termination exercise windows. This removes the 90-day trap entirely — you can exercise later, when you have more information and more cash.

Ask during every offer: "What's the post-termination exercise window?" If it's 90 days, ask if they can extend. If they can't or won't, factor the exercise cost into your willingness to leave. It's a real constraint on your career mobility.

Early exercise

Some companies allow you to exercise options before they vest. Why would you?

Early exercise is a power move if you're joining very early (strike near zero) and have cash to burn. At Series B+ it's usually not meaningful.

The exercise decision tree

When you vest options, you face three choices every time:

Right answer depends on: your cash position, your conviction in the company, tax situation, and liquidity path.

6. Tax treatment

This is where equity comp diverges most from intuition. The same grant can cost you 20% or 50% in taxes depending on type, timing, and holding period.

ISOs — the AMT quirk

ISOs have the best tax treatment if you qualify. The qualification is:

If you qualify:

If you don't qualify (sell too early — "disqualifying disposition"):

The AMT trap (important)

When you exercise ISOs and hold, the spread (FMV − strike) is an AMT adjustment. AMT is the Alternative Minimum Tax — a parallel tax system designed to prevent high earners from using deductions to pay too little.

Example: exercise 10,000 ISOs at $3 strike, FMV now $15. Spread = $120,000. For regular tax, no event. For AMT, you added $120,000 to your income. You may owe ~$30,000 in AMT tax in the year of exercise — even though you haven't sold anything and have no cash from it.

This has destroyed people. The dot-com era is littered with engineers who exercised ISOs at high FMVs, got stuck with six-figure AMT bills, then watched the stock crater and had no way to pay the tax.

Defensive plays:

NSOs — simpler, more expensive

NSOs have no favorable treatment — just straightforward ordinary income + capital gains. The advantage is simplicity and no AMT surprise.

RSUs — taxable at vest (public) or at liquidity (private)

Public-company RSUs: at vest, FMV of shares becomes ordinary income. Employer withholds (usually by selling ~22-37% of the vested shares). After vest, additional gain or loss is capital gains.

Private-company RSUs (double-trigger): no tax at vest. Tax occurs at the second trigger — usually IPO or acquisition. At that point, the full FMV becomes ordinary income, all at once. This can create massive tax bills in the IPO year.

QSBS — the best deal in the tax code

Qualified Small Business Stock (Section 1202) is a major tax benefit most people don't know about.

If you hold stock (not options — has to be actual shares) in a qualifying C-corp for at least 5 years, you may exclude up to the greater of $10 million or 10× your basis of federal capital gains tax from the sale.

Qualification requirements (simplified):

Why this matters for your decision

If you join a Series B AI company, exercise your options early enough to start the 5-year QSBS clock, and the company exits 5+ years later — you potentially save millions in federal tax. Combined with WA's no-income-tax, your gains can be largely untouched. This is one of the strongest arguments for early exercise at a growth-stage company.

California and NY don't conform to QSBS federally, so if you relocate, the state tax hit changes. WA is favorable.

7. Liquidity paths

Private-company equity is worth nothing until it becomes liquid. The three paths:

IPO

Acquisition

Secondary markets and tender offers

The illiquidity reality

Your private-company equity may be locked up for 7-10 years or more. During that time, you can't sell to buy a house, pay for college, or fund retirement. Factor that into any comp comparison. "Equity at Series B" is not equivalent to "equity at Google" — even if the paper values match.

8. Liquidation preferences and the preference stack

This is the single most misunderstood part of startup equity, and it's where "the company sold for $200M and I got nothing" stories come from.

Preferred stock has preference

Investors don't buy common shares — they buy preferred shares. Preferred has rights common doesn't:

1x non-participating preferred — the standard

The most common structure: preferred investors get 1× their investment back at exit, OR they convert to common and take their pro-rata share — whichever is more.

Example: Series B investor puts in $50M at $400M post-money (12.5% of company).

1x participating preferred — worse for you

Participating preferred gets the preference AND participates pro-rata in remaining proceeds.

Same example, $800M exit, $50M invested at 12.5%:

Sometimes capped (participation stops after 3× return). Ask about this.

The preference stack

Each round's preferred typically sits on top of prior rounds' preferred. Later money paid first.

Company that raised:

Total preference stack: $218M. If the company sells for $200M, the Series C investor gets some/most of their money back, and everyone else (including you, common shareholder) gets zero.

Why this is critical to your evaluation

A Series C company with a $2B valuation and a $300M preference stack has a different common-stock outcome profile than a Series B company with a $400M valuation and a $70M preference stack — even if your paper grant value looks similar. High valuations accumulate preference that can wipe common in a down-exit scenario. Ask for the cap table summary before signing.

The "2021 vintage" problem

Many companies raised at stretched valuations in 2020-2022. They now need to grow into those valuations or face down-rounds. If they exit below their peak preference stack, common is wiped. This is especially relevant when evaluating companies that last raised in that era.

9. How to evaluate a grant

Most offers present equity as a dollar figure: "$400k in equity over 4 years." This is almost always calculated as (shares granted × last preferred price) / 4. This number is usually misleadingly high. Here's how to translate it.

Questions to get real data

  1. How many shares am I being granted? (Number of shares is the underlying reality.)
  2. What is the strike price?
  3. What is the current 409A FMV? (Not the preferred price; the common-stock valuation.)
  4. What is the last preferred price and date of last round?
  5. What is the post-money valuation of the last round?
  6. What's the total preference stack to date?
  7. How many total shares outstanding (fully diluted)? (Lets you calculate % ownership.)
  8. What's the typical refresh cadence?
  9. What's the post-termination exercise window?
  10. What's the acceleration on change of control?

If the company won't answer #5-7, that's a yellow flag. Common-stock grants are genuine offers; information about them should not be secret.

The percentage framing

More useful than dollar amount: what percentage of the company am I getting?

Your shares / Fully diluted shares outstanding = your ownership %

Rough benchmarks for a Director/Sr-Manager-level non-executive hire:

StageTypical grant (% fully diluted)
Seed0.25% – 1.0%
Series A0.10% – 0.50%
Series B0.05% – 0.25%
Series C0.03% – 0.15%
Series D0.02% – 0.10%
Pre-IPO0.01% – 0.05%

Numbers rise sharply for VP+/C-level hires — VP of Finance at a Series B might be 0.3-0.8%, CFO 0.5-2%. Head of FP&A / Strategic Finance at Series C is often 0.10-0.25%.

The outcome distribution

Rather than a single "expected value" — model three scenarios:

Rough probability estimates by stage (from startup failure data; directionally correct):

StageP(zero)P(base)P(home run)
Series A~55%~35%~10%
Series B~40%~45%~15%
Series C~25%~55%~20%
Series D~15%~60%~25%
Late/growth~8%~62%~30%

These are rough; sector, founders, and market timing shift these significantly.

10. Public-company equity

Simpler, more liquid, and easier to evaluate than private-company equity. Trades some upside for a lot of clarity.

RSUs at public companies

Evaluation: look at the number of shares, not the dollar value quoted. Stock can move 40% either direction in a year. The grant's dollar value on your offer letter is the grant-date price times shares; reality could be very different.

ESPP (Employee Stock Purchase Plan)

Performance Stock Units (PSUs)

Blackout windows and 10b5-1 plans

11. Negotiation: what's actually movable

Not everything in an offer is fixed. Knowing what's negotiable — and how — is leverage.

Most negotiable

Moderately negotiable

Rarely movable

Leverage sources for you specifically

The first-offer trap

Hiring managers always have a band. The first offer is rarely the top of it. Expect to counter once; most will have 10-15% more to give. Don't pre-negotiate against yourself. If they ask "what are you looking for?" before making an offer, give a range anchored at or above what you actually want. If you state a number below what they were going to offer, you've just given away money.

12. Worked examples

Example 1 — Series B AI company, Strategic Finance Director

Offer:

Company context:

Analysis:

Scenario outcomes (4 years from now, assuming full vest):

ScenarioExit valuationCommon priceYour grossExercise costNet pre-tax
Fail$0$0$0$0$0
Down exit$400M~$5$150,000$120,000$30,000
Base case$2B~$45$1,350,000$120,000$1,230,000
Home run$10B~$230$6,900,000$120,000$6,780,000

With QSBS held 5+ years: federal tax on gains can drop to near zero (up to $10M). WA has no state income tax. So "net pre-tax" is close to "net in pocket" for the first $10M of gains.

Expected value (rough, probabilistic):
(0.40 × 0) + (0.25 × $30k) + (0.25 × $1.23M) + (0.10 × $6.78M) ≈ $995,000
Amortized over 4 years: ~$250k/year in expected equity value.

Example 2 — Series C fintech, Head of FP&A

Offer:

Context:

Analysis:

Lower probability of zero (Series C), but lower upside multiplier. Cash comp ($241k total) is strong regardless. This offer is more about cash, with equity as upside insurance.

ScenarioProbabilityExit valNet pre-tax
Fail / wipe~15%< $250M$0
Base~55%$4B (2×)~$480k
Home run~20%$15B+~$2M+

Example 3 — Growing public SaaS, Sr. Director Strategic Finance

Offer:

Year-1 comp realized: $230k + $46k + (~750 RSUs × $150 = $112,500) + ESPP benefit ($3,750) = ~$392,000

Total 4-year comp if stock flat: ~$1.34M. If stock 2×: ~$1.57M. If stock halves: ~$1.12M.

Bands are much tighter than private equity. No home-run scenarios; no zero scenarios. You know roughly what you'll make within ±30% of the central estimate.

Example 4 — The failure mode

You take the Series B offer. Work 2 years. Vest 15,000 options. Have unexercised options. Company runs into trouble, executes a down-round at $4 preferred / $1 common. You lose your job in a RIF.

This isn't a "rare" outcome. This is what happens to roughly 40% of Series B hires, looking at aggregate data. Plan for the possibility.

13. What this means for you

The Jeremy-specific frame

You have three factors most people don't:

Rules of thumb for your evaluation

  1. Cash comp must stand on its own. Equity is a lottery ticket. If the base doesn't cover your life, don't count on the equity to bridge it. Floor: $160-180k base.
  2. Exercise windows matter for mobility. If a company has a 90-day post-termination window, factor in the cash you'd need to exercise if you leave. This constrains your career options.
  3. Stage trade-off: Series B has highest upside but highest zero risk. Series C/D trades upside for higher probability of some outcome. Public trades upside for certainty.
  4. The 5-year QSBS hold is a real consideration. If you join a qualifying C-corp, exercise early (low spread = low AMT), and hold for 5 years, the federal tax savings can be massive. Plan for the hold.
  5. Preference stack is a bright-line check. If a company's preference stack is >60% of last valuation, common is more at risk in a down exit. High-flying 2021 vintages are especially exposed.
  6. RSU bird in the hand ≥ 2 option birds in the bush for your situation — you're cash-flow-sensitive over the next 2 years. Public-company RSUs are real comp. Private-company options may be worth zero.

Implication for lane selection

Don't pre-narrow. But the equity analysis suggests the optimal frontier for you is probably:

This is a working hypothesis to test against the other research topics, not a conclusion.

14. Questions to ask in every offer conversation

Copy this list. Use it.

  1. How many shares am I being granted? (Not dollar value — actual share count.)
  2. What is the strike price? (For options.)
  3. What is the current 409A FMV? (For options — tells me the zero-spread floor.)
  4. What was the last preferred-round price and date?
  5. What is the post-money valuation of the most recent round?
  6. How many total shares are outstanding (fully diluted)?
  7. What does the preference stack total across all rounds?
  8. Are the preferred shares participating or non-participating? Any unusual multiples (1.5×, 2×)?
  9. What is the post-termination exercise window? Can it be extended?
  10. What are the acceleration provisions on change of control? Is double-trigger standard here?
  11. What's the refresh grant cadence and typical sizing?
  12. Does the company qualify for QSBS? (Most tech/bio C-corps do.)
  13. Is this an ISO or NSO grant? If ISO, what's the $100k annual limit math on my grant?
  14. Have there been any secondary/tender offers? Anticipated?
  15. What's the company's stated path to liquidity? Expected timing?
Good sign

If they answer these thoroughly and without hesitation, they've been audited, they respect you, and they know their cap table. Grant is more likely to be what it appears to be.

Bad sign

If they dodge, get defensive, or tell you "don't worry about the details," walk away. You are about to sign up for years of your life in exchange for this equity. If they won't tell you what it actually is, it probably isn't much.


Draft v1 — open questions to address in next session: specifics on AMT triggers for your tax situation, worked QSBS example with WA residency, how to think about tender offers if they exist.

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